The mechanism underlying CD4~＋CD25~＋Foxp3~＋ regulatory T cells（Tregs） promoting the development of colorectal cancer（CRC） was elucidated in the present study. Forty-eight cases of colorectal carcinomas, 22 case...The mechanism underlying CD4~＋CD25~＋Foxp3~＋ regulatory T cells（Tregs） promoting the development of colorectal cancer（CRC） was elucidated in the present study. Forty-eight cases of colorectal carcinomas, 22 cases of colon polyps and 21 cases of normal colorectal tissues were collected. The correlation among Foxp3, IL-10 and Stat3, and the clinical relevance of these three indexes were analyzed. The results showed that the levels of Foxp3 expressed in infiltrating CD4~＋CD25~＋Foxp3~＋Tregs, and IL-10 and Stat3 in CRC tissues were all significantly higher than those in polypus tissues and normal colon tissues（P〈0.01）. Pearson correlation analysis indicated that the expression level of Foxp3 was positively correlated with Stat3 at m RNA level（r=0.526, P=0.036）, and was positively correlated with IL-10 at protein level（r=0.314, P=0.030）. The Foxp3 expressed in CD4~＋CD25~＋Foxp3~＋Tregs was correlated with the histological grade, lymph node metastasis and TNM stage of CRC（P〈0.05 for all）. The IL-10 expression was correlated with the histological grade and TNM stage（both P〈0.05）. The Stat3 expression was correlated with the lymph node metastasis and TNM stage（both P〈0.05）. It was concluded that CD4~＋CD25~＋Foxp3~＋Tregs can inhibit tumor immunity in combination with some other related inhibitory cytokines and that Foxp3 expression in CD4~＋CD25~＋Foxp3~＋Tregs correlates with CRC progression.展开更多
目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（...目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（ ELISA）检测外周血中细胞因子IL-9、IL-17、TGF-β等的表达水平。结果（1）ITP组患者外周血Th9、Th17细胞比例及细胞因子IL-9、IL-17浓度均明显高于健康对照组[（1.27±0.31）% vs （0.71±0.26）%, P〈0.05；（2.01±0.42）% vs （0.97±0.32）%, P〈0.05。（26.52±7.48） ng/L vs （16.16±5.27） ng/L, P〈0.05；（10.97±3.94） ng/L vs （7.14±2.73） ng/L, P〈0.05]。 CD4＋CD25＋Foxp3＋细胞比例及细胞因子TGF-β浓度明显低于对照组[（4.69±0.85）% vs （7.16±1.92）%,P〈0.05。（3.76±1.28）μg/L vs （6.41±1.83）μg/L,P〈0.05]。（2）相关性分析：患者Th9、Th17细胞比例及IL-9、IL-17浓度与血小板计数负相关（γs=-0.349,P=0.037；γs=-0.392,P=0.031；γs=-0.436,P=0.014；γs=-0.401,P=0.027）；患者Treg细胞比例及TGF-β浓度与血小板计数正相关（γs=0.411,P=0.024；γs=0.407,P=0.026）。结论成人原发免疫性血小板减少症患者 Th9、Th17与 CD4＋CD25＋Foxp3＋调节性 T 细胞比例失衡,血清IL-9、IL-17和TGF-β水平改变,这些原因可能参与成人原发免疫性血小板减少症的免疫发病过程。展开更多
目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细...目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细胞术检测受试者外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例、T淋巴细胞亚群细胞比例;采用ELISA方法检测血清中细胞因子IL-10、TGF-β1、TGF-β2的含量。结果与健康对照组相比,宫颈癌组外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值明显增高,差异有统计学意义(P<0.01),T淋巴细胞亚群(CD3^+、CD4^+、CD8^+、CD4^+/CD8^+、CD19^+)比例差异无统计学意义(P>0.05),血清IL-10含量明显增高,TGF-β2含量明显降低,差异有统计学意义(P<0.01),TGF-β1的含量差异无统计学意义(P>0.05);宫颈癌组手术后、化疗后CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例,血清IL-10、TGF-β1、TGF-β2含量均明显降低,差异有统计学意义(P<0.01),CD4^+CD25^+Foxp3^+Treg与TGF-β1之间存在正相关(r=0.673,P<0.01)。结论宫颈癌患者CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值增高,且与TGF-β1含量呈正相关,可能在宫颈癌的肿瘤发生发展及肿瘤免疫逃逸中起着重要作用。展开更多
基金supported by a grant from Natural Science Foundation of Hubei Province,China(No.2009CD201)
文摘The mechanism underlying CD4~＋CD25~＋Foxp3~＋ regulatory T cells（Tregs） promoting the development of colorectal cancer（CRC） was elucidated in the present study. Forty-eight cases of colorectal carcinomas, 22 cases of colon polyps and 21 cases of normal colorectal tissues were collected. The correlation among Foxp3, IL-10 and Stat3, and the clinical relevance of these three indexes were analyzed. The results showed that the levels of Foxp3 expressed in infiltrating CD4~＋CD25~＋Foxp3~＋Tregs, and IL-10 and Stat3 in CRC tissues were all significantly higher than those in polypus tissues and normal colon tissues（P〈0.01）. Pearson correlation analysis indicated that the expression level of Foxp3 was positively correlated with Stat3 at m RNA level（r=0.526, P=0.036）, and was positively correlated with IL-10 at protein level（r=0.314, P=0.030）. The Foxp3 expressed in CD4~＋CD25~＋Foxp3~＋Tregs was correlated with the histological grade, lymph node metastasis and TNM stage of CRC（P〈0.05 for all）. The IL-10 expression was correlated with the histological grade and TNM stage（both P〈0.05）. The Stat3 expression was correlated with the lymph node metastasis and TNM stage（both P〈0.05）. It was concluded that CD4~＋CD25~＋Foxp3~＋Tregs can inhibit tumor immunity in combination with some other related inhibitory cytokines and that Foxp3 expression in CD4~＋CD25~＋Foxp3~＋Tregs correlates with CRC progression.
文摘目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（ ELISA）检测外周血中细胞因子IL-9、IL-17、TGF-β等的表达水平。结果（1）ITP组患者外周血Th9、Th17细胞比例及细胞因子IL-9、IL-17浓度均明显高于健康对照组[（1.27±0.31）% vs （0.71±0.26）%, P〈0.05；（2.01±0.42）% vs （0.97±0.32）%, P〈0.05。（26.52±7.48） ng/L vs （16.16±5.27） ng/L, P〈0.05；（10.97±3.94） ng/L vs （7.14±2.73） ng/L, P〈0.05]。 CD4＋CD25＋Foxp3＋细胞比例及细胞因子TGF-β浓度明显低于对照组[（4.69±0.85）% vs （7.16±1.92）%,P〈0.05。（3.76±1.28）μg/L vs （6.41±1.83）μg/L,P〈0.05]。（2）相关性分析：患者Th9、Th17细胞比例及IL-9、IL-17浓度与血小板计数负相关（γs=-0.349,P=0.037；γs=-0.392,P=0.031；γs=-0.436,P=0.014；γs=-0.401,P=0.027）；患者Treg细胞比例及TGF-β浓度与血小板计数正相关（γs=0.411,P=0.024；γs=0.407,P=0.026）。结论成人原发免疫性血小板减少症患者 Th9、Th17与 CD4＋CD25＋Foxp3＋调节性 T 细胞比例失衡,血清IL-9、IL-17和TGF-β水平改变,这些原因可能参与成人原发免疫性血小板减少症的免疫发病过程。
文摘目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细胞术检测受试者外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例、T淋巴细胞亚群细胞比例;采用ELISA方法检测血清中细胞因子IL-10、TGF-β1、TGF-β2的含量。结果与健康对照组相比,宫颈癌组外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值明显增高,差异有统计学意义(P<0.01),T淋巴细胞亚群(CD3^+、CD4^+、CD8^+、CD4^+/CD8^+、CD19^+)比例差异无统计学意义(P>0.05),血清IL-10含量明显增高,TGF-β2含量明显降低,差异有统计学意义(P<0.01),TGF-β1的含量差异无统计学意义(P>0.05);宫颈癌组手术后、化疗后CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例,血清IL-10、TGF-β1、TGF-β2含量均明显降低,差异有统计学意义(P<0.01),CD4^+CD25^+Foxp3^+Treg与TGF-β1之间存在正相关(r=0.673,P<0.01)。结论宫颈癌患者CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值增高,且与TGF-β1含量呈正相关,可能在宫颈癌的肿瘤发生发展及肿瘤免疫逃逸中起着重要作用。
